'Five' in the Bible

Five of you shall chase a hundred, and a hundred of you shall chase ten thousand; and your enemies shall fall before you by the sword.

If the person is from five years old even to twenty years old, then your valuation shall be for a male twenty shekels, and for a female ten shekels.

If the person is from a month old even to five years old, then your valuation shall be for a male five shekels of silver, and for a female your valuation shall be three shekels of silver.